FAIRCHILD FDW2508

FDW2508P
Dual P-Channel 1.8 V Specified PowerTrench MOSFET
General Description
Features
This P-Channel –1.8V specified MOSFET uses
Fairchild’s advanced low voltage PowerTrench process.
It has been optimized for battery power management
applications.
•
–6 A, –12 V. RDS(ON) = 18 mΩ @ VGS = –4.5 V
RDS(ON) = 22 mΩ @ VGS = –2.5 V
RDS(ON) = 30 mΩ @ VGS = –1.8 V
Applications
•
Low gate charge(26nC typical)
•
Power management
•
•
Load switch
High performance trench technology for extremely
low RDS(ON)
•
Battery protection
•
Low profile TSSOP-8 package
G2
S2
S2
D2
G1
S1
S1
D1
TSSOP-8
1
8
2
7
3
6
4
5
Pin 1
Absolute Maximum Ratings
Symbol
TA=25oC unless otherwise noted
Parameter
VDSS
Drain-Source Voltage
VGSS
Gate-Source Voltage
ID
Drain Current
Ratings
– Continuous
(Note 1)
– Pulsed
PD
V
±8
V
–6
A
–30
Power Dissipation for Single Operation
TJ, TSTG
Units
–12
(Note 1a)
1.3
W
(Note 1b)
1
–55 to +150
°C
(Note 1a)
100
°C/W
(Note 1b)
125
Operating and Storage Junction Temperature Range
Thermal Characteristics
RθJA
Thermal Resistance, Junction-to-Ambient
Package Marking and Ordering Information
Device Marking
Device
Reel Size
Tape width
Quantity
2508P
FDW2508P
13’’
12mm
2500 units
2001 Fairchild Semiconductor Corporation
FDW2508P Rev. E (W)
FDW2508P
December 2001
Symbol
Parameter
TA = 25°C unless otherwise noted
Test Conditions
Min
ID = –250 µA
–12
Typ
Max Units
Off Characteristics
BVDSS
Drain–Source Breakdown Voltage
VGS = 0 V,
∆BVDSS
∆TJ
IDSS
Breakdown Voltage Temperature
Coefficient
Zero Gate Voltage Drain Current
ID = –250 µA, Referenced to 25°C
VDS = –10 V,
VGS = 0 V
–1
µA
IGSSF
Gate–Body Leakage, Forward
VGS = 8 V,
VDS = 0 V
100
nA
IGSSR
Gate–Body Leakage, Reverse
VGS = –8 V,
VDS = 0 V
–100
nA
ID = –250 µA
On Characteristics
V
–2
mV/°C
(Note 2)
VGS(th)
Gate Threshold Voltage
VDS = VGS,
∆VGS(th)
∆TJ
RDS(on)
Gate Threshold Voltage
Temperature Coefficient
Static Drain–Source
On–Resistance
ID = –250 µA, Referenced to 25°C
2.7
14
17
22
18
ID(on)
On–State Drain Current
VGS = –4.5 V, ID = –6 A
VGS = –2.5 V, ID = –5 A
VGS = –1.8 V, ID = –4 A
VGS = –4.5 V, ID = –6A, TJ=125°C
VGS = –4.5 V, VDS = –5 V
gFS
Forward Transconductance
VDS = –5 V,
ID = –6 A
–0.4
–0.5
–1.5
V
mV/°C
18
22
30
25
–30
mΩ
A
32
S
Dynamic Characteristics
VDS = –6 V,
f = 1.0 MHz
Ciss
Input Capacitance
Coss
Output Capacitance
Crss
Reverse Transfer Capacitance
Switching Characteristics
td(on)
Turn–On Delay Time
tr
Turn–On Rise Time
V GS = 0 V,
2644
pF
987
pF
602
pF
(Note 2)
VDD = –6 V,
VGS = –4.5 V,
ID = –1 A,
RGEN = 6 Ω
14
25
ns
9.1
18
ns
ns
td(off)
Turn–Off Delay Time
122
195
tf
Turn–Off Fall Time
89
142
ns
Qg
Total Gate Charge
26
36
nC
Qgs
Gate–Source Charge
Qgd
Gate–Drain Charge
VDS = –6 V,
VGS = –4.5 V
ID = –6 A,
4
nC
7
nC
Drain–Source Diode Characteristics and Maximum Ratings
IS
Maximum Continuous Drain–Source Diode Forward Current
VSD
Drain–Source Diode Forward
Voltage
VGS = 0 V,
IS = –1.1 A
(Note 2)
–0.59
–1.1
A
–1.2
V
Notes:
1. RθJA is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting surface of
the drain pins. RθJC is guaranteed by design while RθCA is determined by the user's board design.
a)
RθJA is 100°C/W (steady state) when mounted on a 1 inch² copper pad on FR-4.
b)
RθJA is 125°C/W (steady state) when mounted on a minimum copper pad on FR-4.
2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%
FDW2508P Rev. E (W)
FDW2508P
Electrical Characteristics
FDW2508P
Typical Characteristics
2
VGS = -4.5V
-2.5V
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
60
-ID, DRAIN CURRENT (A)
-3.0V
45
-2.0V
-1.8V
30
-1.5V
15
0
1.8
VGS = -1.8V
1.6
-2.0V
1.4
-2.5V
1.2
-3.0V
1
2
3
4
0
15
-VDS, DRAIN TO SOURCE VOLTAGE (V)
30
45
60
-ID, DIRAIN CURRENT (A)
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage.
1.4
0.045
ID = -6A
VGS = -4.5V
RDS(ON), ON-RESISTANCE (OHM)
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
-4.5V
0.8
0
1.2
1
0.8
ID = -3A
0.035
TA = 125oC
0.025
TA = 25oC
0.015
0.005
0.6
-50
-25
0
25
50
75
100
125
1
150
2
Figure 3. On-Resistance Variation with
Temperature.
4
5
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage.
40
100
TA = -55oC
25oC
-IS, REVERSE DRAIN CURRENT (A)
VDS = -5V
3
-VGS, GATE TO SOURCE VOLTAGE (V)
TJ, JUNCTION TEMPERATURE (oC)
o
-ID, DRAIN CURRENT (A)
-3.5V
1
125 C
30
20
10
VGS = 0V
10
TA = 125oC
1
25oC
0.1
-55oC
0.01
0.001
0.0001
0
0.6
1
1.4
1.8
-VGS, GATE TO SOURCE VOLTAGE (V)
Figure 5. Transfer Characteristics.
2.2
0
0.2
0.4
0.6
0.8
1
1.2
-VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 6. Body Diode Forward Voltage Variation
with Source Current and Temperature.
FDW2508P Rev. E (W)
FDW2508P
Typical Characteristics
4000
VDS = -4V
ID = -6A
f = 1 MHz
VGS = 0 V
-6V
4
-8V
CAPACITANCE (pF)
-VGS, GATE-SOURCE VOLTAGE (V)
5
3
2
1
CISS
3000
2000
COSS
1000
CRSS
0
0
0
5
10
15
20
25
0
30
3
Qg, GATE CHARGE (nC)
Figure 7. Gate Charge Characteristics.
9
12
Figure 8. Capacitance Characteristics.
100
30
P(pk), PEAK TRANSIENT POWER (W)
-ID, DRAIN CURRENT (A)
6
-VDS, DRAIN TO SOURCE VOLTAGE (V)
100µ
1ms
10ms
RDS(ON) LIMIT
10
100m
1s
DC
1
VGS = -4.5V
SINGLE PULSE
RθJA = 125oC/W
0.1
TA = 25oC
0.01
0.01
0.1
1
10
100
SINGLE PULSE
RθJA = 125°C/W
TA = 25°C
25
20
15
10
5
0
0.001
0.01
0.1
1
10
100
1000
t1, TIME (sec)
-VDS, DRAIN-SOURCE VOLTAGE (V)
Figure 9. Maximum Safe Operating Area.
Figure 10. Single Pulse Maximum
Power Dissipation.
r(t), NORMALIZED EFFECTIVE
TRANSIENT THERMAL
RESISTANCE
1
D = 0.5
RθJA(t) = r(t) * RθJA
0.2
0.1
o
RθJA = 125 C/W
0.1
P(pk)
0.05
0.02
0.01
t1
t2
0.01
TJ - TA = P * RθJA(t)
Duty Cycle, D = t1 / t2
SINGLE PULSE
0.001
0.0001
0.001
0.01
0.1
1
10
100
1000
t1, TIME (sec)
Figure 11. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 1b.
Transient thermal response will change depending on the circuit board design.
FDW2508P Rev. E (W)
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
Bottomless™
CoolFET™
CROSSVOLT™
DenseTrench™
DOME™
EcoSPARK™
E2CMOSTM
EnSignaTM
FACT™
FACT Quiet Series™
FAST 
FASTr™
FRFET™
GlobalOptoisolator™
GTO™
HiSeC™
ISOPLANAR™
LittleFET™
MicroFET™
MicroPak™
MICROWIRE™
OPTOLOGIC™
OPTOPLANAR™
PACMAN™
POP™
Power247™
PowerTrench 
QFET™
QS™
QT Optoelectronics™
Quiet Series™
SILENT SWITCHER 
SMART START™
STAR*POWER™
Stealth™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SyncFET™
TinyLogic™
TruTranslation™
UHC™
UltraFET 
VCX™
STAR*POWER is used under license
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
systems which, (a) are intended for surgical implant into
support device or system whose failure to perform can
the body, or (b) support or sustain life, or (c) whose
be reasonably expected to cause the failure of the life
failure to perform when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. H4